aid: interpublic
name: Interpublic Group Rules
description: >-
  Validation, governance, and operational rules applied to the Interpublic
  Group APIs.json index. No OpenAPI artifacts are produced because no public
  REST API is published at the holding-company level.
type: company
profile:
  - apis.json
governance:
  source: api-evangelist
  steward: Kin Lane
  visibility: public
rules:
  - id: apisjson-required-fields
    description: APIs.json must include aid, name, description, url, created, modified, and maintainers.
    severity: error
  - id: apisjson-tags-upper-case
    description: All tags must use upper-case first letters.
    severity: warn
  - id: openapi-non-empty
    description: OpenAPI specs must reference real, validated endpoints. Stub or empty specs are not permitted.
    severity: error
  - id: artifact-location
    description: All OpenAPI specs live under openapi/{repo}-openapi.yml.
    severity: error
  - id: holding-company-watch
    description: Track Omnicom-IPG merger integration; revisit if a unified developer surface is published under omc.com.
    severity: info